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Finding the Fourth Proportional to 93,410.06, 128,905.19 and 53,123.77

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Solution

The fourth proportional to 93,410.06, 128,905.19 and 53,123.77 is: 73,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,410.06 : 128,905.19 = 53,123.77 : x
  2. Step 2: Convert to fraction form
    93,410.06/128,905.19 = 53,123.77/x
  3. Step 3: Cross multiply
    93,410.06x = 128,905.19 × 53,123.77
  4. Step 4: Simplify right side
    93,410.06x = 6,847,928,755.22
  5. Step 5: Solve for x
    x = 6,847,928,755.22/93,410.06
  6. Step 6: Final answer
    x = 73,310.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.